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JAMES-1t. H A SKEL L, o r New Y our, N',Y.

Letten-Patenten.' 63,044, ma Marek 19,1867.

' IMPB'VBD MODE 0F TRBATING AND SBPARATING VBGETABLE PIBRIIS. A

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'ro ALL WHoM rr MAYICoNeEnN;

Be itknown that I, JAMES R. HASKELL, (if the city, county, and State ofNew York, h veinvent'ed a. new

:tnd improved Mode of Treating Vegetable Fibr'ous Substances; and I dohereby'deelnre tbattheJollowng isi ,u full and exactdescripti'on oi thesome.

The nature of my invention consists of a. eheopand expeditious modeot'reducing cane, crude hemp-stalks, and other fibrous substances tofibre, to be used in the arts l To enable others skilled vin the art touse my 'inyen'tiom I willgproeeed to describe the operation ofmyprixtess, reference being had to the drawi'ng`liereto attached of enappurntu's in which a portion of my plcess can be earriedon althoughl donot confine myself' to this particular forni, as it is obvious that theobject sought can be accomplished in other ways besides that shown inthe drawing.

The'draning representsn boiler, A, und reservoir, H, the .boiler beingconnected through the pipe D with-,a steam boiler, not shown. The cane,crude hemp-stalks, ol' other fibrous material t be treated, may beflattened by being passed betrre'en rollers or not, according to thenature-of the plant. First, I put the-'material in n. vut or othersuitable receptacle, und steep or boil it in lime-water for about fourhours, more or less, for the purpose of softening the structure andneutralizing the acids eontnine-d in the sap of the plant, andextracting colo-Ling matter. Second I nextv ass the-material betweenrollers for the .ure.sc of s ueezinf* out such muciluein'. 7 l t 's oous substances ns muy have been eliminated by the action of thelin1e-water and heut, Third, I next put the material into ythe boiler A(see drawing) through ,the mnn-hole B, which is then tightly covered,with the inan-hole plate. Steam nt a. pressure of about tiro atmospheresis then let into the-boiler Athroughthe pipe und stpco'ckD.. The air andcondensed water are next drnwnof through the pipes and stopscocks I andE. F is the valve and lopening through which the Contentsef the boiler Anre discharged. After steamingthe materialt`or about one-hrtlf hour,more orless, for the purpose of opening :1nd extending thejpores ortubes of the plant and expelling the air from the same, the stop-cocksI, E, and D- :tre closed, and an nlknline or caustic nlknline solutioneentain'edin the reservoir H is next turned on through the stop-.cocknndpipe C undress-head @when a shower of cold lye'is'i'aineil on thenruteriitlA in the-boilerpwhich causes n. rapid condensation' of ull thesteam ront'nined in' the boiler'nnd pores or tubes of the fibrousxna'terinl under treatment, causing a v acuuin or partial g vueunm inthe sume, which is immediately filled with the nlkol'in'e solution,Steam isuthen leton 'ogain through the pipe and, stop-cock D, and themnterial is boiled under apressure oi'nbout tiro atmospheres fornbouttno hours;

more or less, for tho'purpose of further freeing the material from gunrand coloring matter. Fourth, I nextpass the material again betweenrollers, forthepurpose of squeezing out the alkaline solution a'ndspreading out and sepl arating the libres. The product caribe used forpaper muking,textile or other purposes,Y in the usual manner. In

the case of crude hempstalks, the product,^us it comes from the rollersvthelnst time, can beput intenl beating engine or grinder, und theentire plant (including the long fibre on the' outside andthe shortfibre of the Woody portion shove can be mnde into pnper.

What I claim as my invention, and desire4 to secure by Letters Patent,is- 1. The mode oiv producing a vaou um or portial'vacuum by rststeaming the vegetable fibrous material under pressure and expellingtheair, and then condensing the stealn' \ritliu shun-er ot' cold lye,(which cn-uses n rapidnbscrption of the lye in e'very part of the plant)in the mannernnd for the purposes substantially as herein- `beforedescribed. I Y l I 2. I claim the mode of treating vegetable fibroussubstances in the forui'nnd manner and for the purposes substantially ushereinbefore described.. l l I JAMES RLHASKELL;

Witnesses:

W. W. DOWNING, S. B. ELLIOTT.

